Check out my bulk-load pattern for BMP finders:
http://theserverside.com/patterns/thread.jsp?thread_id=4540
Gene
-----Original Message-----
From: A mailing list for Enterprise JavaBeans development
[mailto:[EMAIL PROTECTED]]On Behalf Of James Cook
Sent: Wednesday, March 28, 2001 6:27 AM
To: [EMAIL PROTECTED]
Subject: Re: Entity beans vs DAO(Data Access Objects)
----- Original Message -----
From: "Geert Mergan" <[EMAIL PROTECTED]>
> Another major concern regarding performance is finder methods.
> If you need to load say thousands of entity beans from the database,
> how does the spec say the container should do it: row per row or all rows
> at once? If it loads them row by row then entity beans are no good
> in scenarios where you often need to load lots of entity beans.
AFAIK, this is the *only* real problem with Entity Beans and it is limited
to
Bean Managed Persistence only. The EJB 2.0 spec will introduce the concept
of a
persistence manager, and this should allow the developer to circumvent that
limitation. We can only hope. ;-)
As far as the OO arguments earlier, I have another point. I have a rich OO
model
and I use entity beans. The way to achieve this is to keep your OO in Value
Objects. Entity Beans encapsulate these value objects, persist them and
still
benefit from the business logic.
jim
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